Effect of Feeding Hay versus Silage with and without Barley on Digestibility and Nitrogen Utilization in Growing Bulls

This experiment was conducted to determine the effect of feeding leucaena forage and silage substitution in concentrate on the performances of dairy cows. Nine cross-bred Holstein Friesian cows (410±12kg) in the 12th week of lactation were randomly allocated to one of three treatment groups with three replicates/treatments in a completely randomized design. The three treatments were control diet without substitution of leucaena forage and silage (DLFS0), diet with substitution of leucaena forage 10% (DLF10) and diet with substitution of leucaena silage 10% (DLS10). Cows were fed treatments for 60 days. Although nutrient intakes were not significantly different (p>0.05) each other, digestibility of DLFS0 was significantly higher (p<0.05) than others. Conversely, nitrogen utilization and average milk yield of cows offered DLFS0 were significantly lower (p<0.05) than those of cows fed on DLF10 and DLS10. The highest feed cost (p<0.05) per kg of milk was found in DLFS0 and the lowest cost was observed in DLF10. Therefore, although the leucana forage and silage could be substitute up to 10% of concentrates without adverse effects on the performances of dairy cows, the substitution of leucaena forage gave the better performances than that of leucaena silage.

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Effect of Feeding Frequency on Forage Fiber and Nitrogen Utilization in Sheep

Journal of Animal Science ◽

10.2527/jas1987.6441170x ◽

1987 ◽

Vol 64 (4) ◽

pp. 1170-1177 ◽

Cited By ~ 11

Author(s):

L. D. Bunting ◽

M. D. Howard ◽

R. B. Muntifering ◽

K. A. Dawson ◽

J. A. Boling

Keyword(s):

Nitrogen Utilization ◽

Feeding Frequency ◽

Effect Of Feeding

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Effect of feeding fresh or conditioned red clover on milk fatty acids and nitrogen utilization in lactating dairy cows

Journal of Dairy Science ◽

10.3168/jds.2008-1692 ◽

2009 ◽

Vol 92 (3) ◽

pp. 1136-1147 ◽

Cited By ~ 37

Author(s):

M.R.F. Lee ◽

V.J. Theobald ◽

J.K.S. Tweed ◽

A.L. Winters ◽

N.D. Scollan

Keyword(s):

Fatty Acids ◽

Dairy Cows ◽

Red Clover ◽

Nitrogen Utilization ◽

Milk Fatty Acids ◽

Lactating Dairy Cows ◽

Effect Of Feeding

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Effect of feeding on "fear" as measured by passive avoidance in rats.

Journal of Comparative and Physiological Psychology ◽

10.1037/h0028735 ◽

1970 ◽

Vol 70 (3, Pt.1) ◽

pp. 431-436 ◽

Cited By ~ 10

Author(s):

Elvie H. Wilson ◽

James A. Dinsmoor

Keyword(s):

Passive Avoidance ◽

Effect Of Feeding

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EFFECT OF FEEDING ETHINYLOESTRADIOL FOR VARIOUS PERIODS BEFORE MATING ON REPRODUCTION IN THE HAMSTER

Acta Endocrinologica ◽

10.1530/acta.0.0700582 ◽

1972 ◽

Vol 70 (3) ◽

pp. 582-590

Author(s):

B. K. Davis ◽

I. Noske ◽

M. C. Chang

Keyword(s):

Single Dose ◽

Pregnancy Rate ◽

Fertility Control ◽

Normal Pregnancy ◽

Oestrous Cycle ◽

The Other ◽

Feeding Schedule ◽

Crown Rump Length ◽

Essentially Normal ◽

Effect Of Feeding

ABSTRACT Ethinyloestradiol (EO) fed for various periods before mating to female hamsters affected the timing of mating and pregnancy rate. Slight effects on ovulation, foetal-crown rump length and resorption may have occurred, but effects on implantation were not apparent among pregnant hamsters. The response observed depended upon the feeding schedule adopted: hamsters fed 2.5 mg EO in a single dose, on day 3 before mating, mated normally but had a significantly lower pregnancy rate; on the other hand, animals fed 2.5 mg EO (0.21 mg/day) over three oestrous cycles, days 14–3 before mating, showed variations in the time of mating but had an essentially normal pregnancy rate; and, a group of hamsters who received the same total amount of EO (0.63 mg/day) over one oestrous cycle, days 6–3 premating, showed untowards effects by the steroid on both the timing of mating and pregnancy rate. The implications of these results are considered in relation to fertility control.

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